Mohammed Al-Khayyat, M.D.
Internal Medicine Physician · Montclair, CA
Mohammed Al-Khayyat, M.D. is an internal medicine physician with a practice address in Montclair, California, and NPI 1588195424, issued on Mar 22, 2017. Check the license (California A166446, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mohammed Al-Khayyat
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A166446 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9635 Monte Vista Ave Ste 205, Montclair, CA 91763
- Phone
- (909) 621-0009
- Enumerated
- Mar 22, 2017
- Record last updated
- Jul 22, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (909) 399-9265
- Medicare enrollment
- Enrolled (PECOS I20200729002496); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 9635 Monte Vista Ave Ste 205
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marie Johnston, FNP-BCFamily Nurse Practitioner1528505377
- Rodolfo Perez, FNPFamily Nurse Practitioner1134557648
Verify Mohammed Al-Khayyat in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A166446Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,040 Medicare Part D claims for 517 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 49 claims were for opioids.
Most prescribed
- Levofloxacin81 claims
- Atorvastatin Calcium66 claims
- Furosemide60 claims
- Cefdinir43 claims
- Hydrocodone-Acetaminophen37 claims
- Pantoprazole Sodium37 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Elite Medical Group OF Southern CaliforniaSan Bernardino, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mohammed Al-Khayyat among 17,696 internal medicine physician records in California
Mohammed Al-Khayyat, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2007 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 internal medicine physician records list a practice address in Montclair
They are 12 of the 1,301 NPPES records with a practice address in Montclair, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Montclair → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Khanh Duong, MDMontclair, CA 917631225528466
- Dion Kencana, MDMontclair, CA 917631528709805
- Sadia Khan, MDMontclair, CA 917631225271125
- George Moran, MDMontclair, CA 917631639673635
- Kiandokht Partovi, M.D.Montclair, CA 917631689763427
- Atif Qadeer, MDMontclair, CA 917631730160201
- Ali Salem, M.D.Montclair, CA 917631376983122
- Jose Santiago, M.D.Montclair, CA 917631790763191
Common questions
What is Mohammed Al-Khayyat, M.D.'s NPI number?
Mohammed Al-Khayyat, M.D.'s National Provider Identifier (NPI) is 1588195424, issued on Mar 22, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mohammed Al-Khayyat, M.D. located?
The NPPES record lists a practice address at 9635 Monte Vista Ave Ste 205, Montclair, CA, 91763. Phone: (909) 621-0009. Providers update this record themselves, so call before visiting.
How can I verify Mohammed Al-Khayyat, M.D.'s license?
NPPES lists California license number A166446, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mohammed Al-Khayyat, M.D. prescribe under Medicare Part D?
In 2024, Mohammed Al-Khayyat, M.D. had 1,040 Medicare Part D claims for 517 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.